树莓派学习笔记——RPi.GPIO 流水灯

0.前言

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import RPi.GPIO as GPIO
import time
# BCM GPIO编号
pins = [17,18,27,22,23,24,25,4]
def setup():
    # 采用BCM编号
    GPIO.setmode(GPIO.BCM)
    # 设置所有GPIO为输出状态，且输出低电平
    for pin in pins:
        GPIO.setup(pin, GPIO.OUT)
        GPIO.output(pin, GPIO.LOW)
def loop():
    while True:
        # 循环点亮
        for pin in pins:
            GPIO.output(pin, GPIO.HIGH)
            time.sleep(0.5)
            GPIO.output(pin, GPIO.LOW)
            time.sleep(0.5)
def destroy():
    for pin in pins:
        GPIO.output(pin, GPIO.LOW)
        GPIO.setup(pin, GPIO.IN)
if __name__ == ‘__main__‘:
    # 初始化GPIO
    setup()
    try:
        loop()
    except KeyboardInterrupt:
        # 恢复GPIO口状态
        destroy()

树莓派学习笔记——RPi.GPIO 流水灯,布布扣,bubuko.com

树莓派学习笔记——RPi.GPIO 流水灯

原文：http://blog.csdn.net/xukai871105/article/details/22716677